public bool XoaChiTietHoaDon(string MaHD, string MaMon)
{
try
{
ChiTietHoaDon ct = db.ChiTietHoaDon.Find(MaHD, MaMon);
if (ct != null)
{
db.ChiTietHoaDon.Remove(ct);
db.SaveChanges();
}
return(true);
}
catch (Exception)
{
return(false);
}
}
public bool CapNhatChiTietHoaDon(string MaHD, string MaMon, double DonGia, int SoLuong, string GhiChu)
{
try
{
ChiTietHoaDon ct = db.ChiTietHoaDon.Find(MaHD, MaMon);
if (ct != null)
{
ct.MaHD = MaHD;
ct.MaMon = MaMon;
ct.DonGia = DonGia;
ct.SoLuong = SoLuong;
ct.GhiChu = GhiChu;
db.SaveChanges();
}
;
return(true);
}
catch (Exception)
{
return(false);
}
}
public bool ThemChiTietHoaDon(string MaHD, string MaMon, double DonGia, int SoLuong, string GhiChu)
{
try
{
var ct = new ChiTietHoaDon()
{
MaHD = MaHD,
MaMon = MaMon,
DonGia = DonGia,
SoLuong = SoLuong,
GhiChu = GhiChu
};
db.ChiTietHoaDon.Add(ct);
db.SaveChanges();
return(true);
}
catch (Exception)
{
return(false);
}
}
